Artificial tooth with anchoring means therefor



Oct. 2 3, 1923. 1,471,754

A. M. ROSENBLUM ARTIFICIAL TOOTH WITH ANCHORING MEANS THEREFOR File dNov. 23. 1922 lllilllh )ll J0 is "M MI! f I -W IDIIIIIII ?atented @et.23, 1923.

" ATENT ALBERT ll'i'. ROSENBLUM, OF CHICAGO, ILLINOIS.

ARTIFICIAL TOOTH WITH ANCHORING MEANS THEREFOR.

Application filed November 23, 1922.

To all whom it may concern:

Be it known that I, ALBERT M. Rosannnurr, a citizen of the UnitedStates, residing at Chicago, in the county of Cook and State ofIllinois, have invented certain new and useful Improvements in anArtificial Tooth with Anchoring lleans Therefor, of which the followingis a specification.

My invention relates to an artificial tooth with anchoring meanstherefor and has particular reference to an artificial tooth which isinserted between two natural teeth, although the same principle may beused for securing bridge work composed of one or more artificial teethin position.

The primary object of my invention is the provision of an artificialtooth and anchoring means therefor which is placed in position betweentwo natural teeth having crowns placed thereon or any other form ofabutment, the said artificial tooth being a duplicate of a natural toothand anchored at each of its sides to crowns positioned over naturalteeth.

Another and further object of my invention is the provision ofanartificial tooth which is composed of ivory, porcelain, or other plasticcompound so positioned that a minimum amount of metal is used-inanchoring the said tooth and in which contact with the gum of the weareris reduced to a minimum and thus reducing the amount of irritationcaused by contact of metal with the gums of the wearer, and alsoenabling the use of a material which is not affected by the salivaresulting in tarnishing of metal used as crowns and the like.

Another and further object of my in vention is the provision of anartificial tooth which can be prepared and placed in position by beinganchored to rowns on acent natural teeth and cemented in position sothat it is held securely in place with a minimum of time and labor andinconvenience to the patient. I

Another and further object of my invention is the provision of anartificial tooth with anchoring means therefor which are inserted intorecesses in the artificial tooth in such manner that the tooth issecurely held in position without an undue amount of stress upon thecement used for holding a tooth of this character in position so thatthe tooth remains firmly in position.

Another and further object of my inven tion is the provision of anartificial tooth Serial No. 602,675.

which can be easily removed and replaced in case of breakage, withanother tooth without the removal of the entire supporting and anchoringmeans heretofore employed for such purpose.

These and other objects of my invention will be more fully and betterunderstood by reference to the accompanying sheet of drawings and inwhich-- Figure 1 is a front elevational view of an upper tooth embodyingmy invention;

Figure 2 is a side elevational view of the artificial tooth andanchoring means used to hold the artificial tooth in position;

Figure 3 is an elevational view of a crown adapted to be positioned overthe natural tooth;

Figure 4 is a top plan view of my improved invention; and

Figure 5 is an elevational view of the anchoring member used to securethe artificial tooth to the adjacent crowns.

Referring now specifically to the drawings and in which like referencecharacters refer to like parts throughout, an artificial tooth 10 isshown in position against the gum 11 of a wearer with crowns 12 and 13of the usual form composed preferably of gold in position over naturalteeth on eac side of the artificial tooth 10. The said artificial tooth10 has a pair of vertically eX tending recesses '14: and 15 in each ofits sides preferably round in cross section so as to allow for slightadjustment of the tooth after it is placed in position in the mouth ofthe wearer, the said tooth also having a pair of half-elliptical orsemi-circular recesses 16 and 17 at its upper diagonally extending faceand within which portions of the anchoring members hereinafter describedare positioned, these recesses also being of such contour that the toothcan be turned into proper alinement with the other teeth after beingplaced in position. The said tooth 10 is slightly wedge-shaped, beingnarrower at its upper portion so that spaces 18 and 19 are providedbetween the crowns 12 and 13 which allows for easy cleansing out ofparticles of food lodged therein while the artificial tooth 10 at thebottom fits snugly. in the edges of the slightly tapering and preferablyround in cross section which is adapted to fit into the vertical recess14 in the side of the artificial tooth, the stud 22 having a headportion 23 secured thereto which is half elliptical in shape or halfcircular, may be desired and which is adapted to lit into the recess 1'?at the upper side of the tooth, and being flush there with as shown inFigure 2, so that this portion 23 is the only metal which is in contactwith the gum of the wearer. The stud 22 tapers from its lower end upwardso as to secure tight fitting engagement with the tooth 10. A side pieceis provided which is secured to the side of the stud 22 and is slightlyflexible so as to fit snugly agains the crown 12 and is either solderedor welded thereto so that the anchorh'ig member is firmly secured to thefiat side of the crown 12, it being thus understood that theanchoringmember is of such shape and con tour that the tooth is held inposition by the portions of the anchoring member positioned in the sideand top recesses and without any great amount of strain being. imposedupon the cement by means of which the anchoring member is secured to theartificial tooth.

If it is desired toplace two or more artificial teeth in positioninstead or" the usual bridge work, a pair of the anchoring members 20are provided with the portions 23 soldered or brazed together or thepost 22 may be secured directly to the outside of the member 23.

In operation, the device is comparatively simple, the artificial teethbeing made according to the sizes desired and are placed in positionmerely by securing the anchoring members 20 and 21 in position bybrazing them to the crown 12 and 13 after they are placed in positionupon the natural teeth of the wearer and the artificial tooth having itsrecess coated with e ement is simply slipped into position so that thestud 22 extends into the vertical recesses 14 and 15 and the upperportion 23 fits intothe recesses 16 and 17 on the upper surface of thetooth and flush therewith, the under side of the member 23 beingcemented to the tooth so that the artificial tooth is held firmly inposition against the gum of the wearer. In case the tooth is broken, itis very easily removed and a new tooth inserted in the same manner asheretofore described, in inserting the artificial tooth.

It will be understood that while I have shown an embodiment of myinvention in the form of an upper tooth, that it can be applied to thelower teeth as well where anchorin means are possible on each side ofthe tooth.

While I have described more or less precisely the details ofconstruction, I do not wish to be understood as limiting mysell thereto,as I contemplate changes in form and the proportion of parts and thesubstitution of equivalents as circumstances may suggest or renderexpedient without departing' from the spirit or scope of my invention.

I claim:

1. In combination, an artificial tooth having vertically formed recessesextending from the base towards the cusp in the sides thereof, andanchoring means for the said tooth comprising a vertically extendingcentral post adapted to be inserted in said recesses, a flat side memberpresenting a fiat vertical "face secured to the side of the said postand a widened base portion adapted to fit into a complementary termedrecess in the base of the said tooth.

2. In combination, an artificial tooth having vertically formed taperedrecesses exuding from the base towards the cusp portion in the sidesthereof, an anchoring means for the said tooth comprising verticallyextending tapered center posts adapted to be inserted in the saidrecesses, and membe s having fiat tapered faces adapted to be secured toadjacent crowns and to the sides of the posts, the said posts havingenlarged transversely extending portions adapted to fit into recessesformed in the base of the said tooth whereby the base of the toothpresents a plain surface.

Signed at Chicago, Illinois, this 21st day of November, 1922.

ALBERT M. ROSENBLUM.

